Welding tool



FIG. 1 is a front perspective view of a welding tool showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is an bottom view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a left elevational view thereof. 

The ornamental design for a welding tool, as shown and described. 